EP1732151B1 - Structure de bouchon pour batterie à électrolyte gélifié et support de valve integré dans cette structure - Google Patents
Structure de bouchon pour batterie à électrolyte gélifié et support de valve integré dans cette structure Download PDFInfo
- Publication number
- EP1732151B1 EP1732151B1 EP06114436A EP06114436A EP1732151B1 EP 1732151 B1 EP1732151 B1 EP 1732151B1 EP 06114436 A EP06114436 A EP 06114436A EP 06114436 A EP06114436 A EP 06114436A EP 1732151 B1 EP1732151 B1 EP 1732151B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- plug
- valve
- valve body
- cover
- preassembled
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Not-in-force
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/30—Arrangements for facilitating escape of gases
- H01M50/308—Detachable arrangements, e.g. detachable vent plugs or plug systems
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/30—Arrangements for facilitating escape of gases
- H01M50/383—Flame arresting or ignition-preventing means
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/30—Arrangements for facilitating escape of gases
- H01M50/394—Gas-pervious parts or elements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/60—Arrangements or processes for filling or topping-up with liquids; Arrangements or processes for draining liquids from casings
- H01M50/609—Arrangements or processes for filling with liquid, e.g. electrolytes
- H01M50/627—Filling ports
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Definitions
- the present invention concerns the sector of gel-type electric batteries; these are electric batteries wherein the electrolyte consists of a jelly-like substance in place of the usual liquid made with diluted sulphuric acid.
- a sintered pad and a valve body are provided; this last one is formed by a membrane carrying a pipe element equipped with a sealing edge, such edge resting on a check disc under the elastic pressure generated by the membrane.
- Both the membrane with its pipe element, and the check disc must be manufactured with great precision, and also mounting thereof on the plug body must be accomplished extremely accurately in order to guarantee correct operation at the desired pressures.
- a first object of the present invention is hence to suggest a battery plug structure allowing large-scale production with decreased costs of rejects.
- a further object of the present invention is hence to provide a plug structure with a rubber check valve, which may be employed in gel-type batteries and which is more easily adaptable to the different types of battery sockets.
- the preassembled valve body comprises a supporting body 1, capable of housing, inside a valve 6, a retaining cover 2 of said valve 6, equipped with an outlet hole 3, and a base 4, in turn equipped with an inlet hole 5.
- Valve 6 is a special shape manufactured of rubber (not belonging, per se, to the present invention and hence not described in further detail); the retaining lip 6a thereof rests on the horizontal plane 1a of a shoulder formed inside body 1.
- the cover 2 is in turn housed within body 1 and equally rests - with its lower edge - on cited plane 1a; it is further firmly secured, preferably welded, to said supporting body 1.
- Both valve 6 and cover 2, as well as shoulder 1a, are moulded, so that their size is extremely accurate.
- valve 6 is housed in body 1, and cover 2 is subsequently placed thereon; the lower surface, i.e. the base 2a of this cover, rests on the head of valve 6, acting as a valve-valve presser.
- Cover 2 is welded to body 1, on edge 8, for example by ultrasound. Thereby it is possible, by accurately adjusting the distance 9 between said base 2a of cover 2 and the plane 1a of supporting body 1, to determine the desired check pressure of valve 6.
- a first laboratory test is carried out, apt to assess the operating capabilities of the valve thus incorporated in its preassembled valve body.
- a valve-testing negative pressure is applied, with the valve which is expected to open when depression exceeds a predetermined threshold value, for example 100 mbar.
- a positive test pressure is applied, whereupon the valve is expected to open if said pressure exceeds for example a value in the order of 150 mbar.
- said preassembled valve body may be completed by applying filter plate 7 into its housing provided in body 1, and subsequently body 1 may be closed by means of base 4 -thereby also capable of retaining plate 7 - which is fixed, for example by ultrasound welding, along perimeter 10.
- the preassembled assembly Upon completion of the welding operation, and after any further test in order to determine the safety and waterproof state of the valve body assembly, the preassembled assembly is ready for use and may - according to a further important feature of the invention - be applied to various types of plugs.
- Figs. 2a and 2b show the application of the preassembled valve body to threaded plugs and bayonet plugs, respectively, for gel-type batteries.
- the difference between the two types of plug is determined only by the way in which the plug is locked in the suitable holes on the battery covers, 20 and 21, respectively. The description is therefore identical for both types of plug, save for different indications.
- Plug body 11 defines a cylindrical chamber 11a, closed by a bottom wall wherein an opening 12 is formed, sufficiently wide to allow introduction of the already-described preassembled valve body 1; this body 1 is fixed on plug 11, for example by welding along the round seat of opening 12.
- a cover 16 closes from above recess 11a in a non-removable way; in fact, it is welded on the top of body 11, preferably by welding along two different-diameter circumferences 17.
- the plug structure is completed here by a porous flame-trap disc 14, already known in the art. Said disc is fixed into a housing 15 associated with cover 16 and located between preassembled valve body 1 and cover 16. Cover 16 is further equipped with a gas outlet 18.
- valve 6 gas flow from inside the battery to the outside may occur only through valve 6, hence through filter plate 7 and vents 3 and 5, as well as through flame-trap disc 14 and outlet 18.
- any plug in respect of the hole of the battery top wall 20 or 21, wherein it is fastened by screwing in ( fig. 2a ) or by bayonet-anchoring ( fig. 2b ), is further guaranteed by a washer gasket 13, arranged between the top wall of plug body 11 and the same battery cover wall 20 or 21. Sealing is also guaranteed by the fact that said gasket is pressed into its seat by the tightening of a protection and locking ring 19.
- the "Kamina"-type battery plug shown in fig. 3 similarly has a body 24 forming a cylindrical chamber 24a, on the bottom of which preassembled valve body 1 is inserted, fastened by welding on perimeter 27.
- the difference, over the embodiments of figures 2a and 2b consists in the fact that chamber 24a is completely closed at the top thereof, while essential communication with the outside is guaranteed through the "Kamina" pipe 26 formed, in a manner known per se and hence not described in detail here, in battery cover 22, in the hole 22a of which plug 24 is screwed.
- the flame-trap filters are arranged at the outlet of the chimney formed by pipe 26.
- the plug body comprises a main outer wall 28 and an inner wall 29, within which a chamber 29a is formed.
- the structure is fully similar to the one seen with reference to drawings 2a and 2b, in the sense that a preassembled valve body 1 identical to the one of the previous drawings is provided, housed in chamber 29a - being introduced through its bottom wall and fixed into the same by welding 29b - as well as a flame-trap disc 34 mounted in a seat of non-removable cover 30 being provided, above which seat, outlet 31 is formed.
- Plug 28 is applied by pressure into the hole 35 of battery cover 36; this hole is shaped as a suitable, lengthened cylindrical seat.
- plug 28 has its outer wall extending into flexible appendixes 28a, in a manner known per se; these end with teeth 28b which have an oblique lower surface, forming a bevel easing introduction of the plug, and a transversal upper surface, forming an engaging and retaining tooth preventing the plug from slipping out. Sealing is accomplished in a known manner through an O-ring 33.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Filling, Topping-Up Batteries (AREA)
- Gas Exhaust Devices For Batteries (AREA)
- Secondary Cells (AREA)
Claims (12)
- Structure de bouchon pour fermer les trous dans la paroi supérieure de batteries électriques du type à électrolyte gélifié, où est employé un clapet de non-retour apte à garantir une pression stable dans la batterie, caractérisée en ce que ledit clapet (6) est pré-monté dans un corps de clapet pré-assemblé (1), formé en un corps distinct du bouchon et ancré fermement au sein d'un boîtier respectif dans le bouchon.
- Structure de bouchon selon la revendication 1, caractérisée en ce qu'elle comprend une chambre centrale (11a, 24a, 29a), où le corps de clapet pré-assemblé est logé (1), introduit via la face inférieure, à laquelle il est fixé, et fermé depuis le dessus par un couvercle non amovible (16, 30).
- Structure de bouchon selon la revendication 2, caractérisée en ce que ledit corps de clapet pré-assemblé (1) est fixé en toute étanchéité sur le dessous de ladite chambre centrale (11a, 24a, 29a), de préférence par soudage (12, 27, 29b) le long de son périmètre.
- Structure de bouchon selon la revendication 2 ou 3, caractérisée en ce que ledit couvercle (16, 30) est fixé depuis le dessus sur le corps (11, 24, 28) dudit bouchon de fermeture, de préférence par soudage (17).
- Structure de bouchon selon l'une quelconque des revendications 1 à 4, dans laquelle une rondelle-joint (13) est agencée entre le corps de clapet (11) et la paroi supérieure de batterie (20, 21).
- Structure de bouchon selon les revendications 3 à 5, caractérisée en ce que ledit bouchon est fabriqué à partir de batteries du type comportant une rampe "Kamina".
- Structure de bouchon selon la revendication 2 ou 6, dans laquelle ledit couvercle de batterie (22) sert de moyen de repos pour une rondelle-joint (13), ladite rondelle-joint (13) subissant, à son tour, une poussée depuis le corps de bouchon (24).
- Structure de bouchon selon la revendication 6 ou 7, dans laquelle l'étanchéisation supérieure de bouchon est garantie par un joint torique supérieur (25, 33).
- Corps de clapet pré-assemblé pour structures de bouchon selon l'une quelconque des revendications précédentes, fermant les trous dans la paroi supérieure de batteries électriques du type à électrolyte gélifié, caractérisé en ce qu'il comprend un corps de support (1) dans lequel est formée une surface calibrée (1a), servant de siège de repos pour les bords d'étanchéisation (6a) d'un clapet (6), un couvercle de retenue de clapet (2) étant, en outre, monté sur ledit siège de repos, fixé dans une position opérante correctement calibré par rapport au siège de repos , la base (2a) dudit couvercle repose sur la tête du clapet, servant de presseur de clapet.
- Corps de clapet pré-assemblé selon la revendication 9, caractérisé en ce que ledit couvercle (2) est fixé fermement audit corps de support (1).
- Corps de clapet pré-assemblé selon la revendication 9 ou 10, caractérisé en ce que ledit couvercle (2) est soudé sur ledit corps de support (1).
- Corps de clapet pré-assemblé selon la revendication 9, caractérisé en ce qu'un siège de logement pour une plaque filtrante (7) est, en outre, formé dans ledit corps de support (1), une base de retenue (4) de ladite plaque filtrante (7) étant, en outre, associée audit siège.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT000976A ITMI20050976A1 (it) | 2005-05-26 | 2005-05-26 | Struttura di tappo per batteria elettrica del tipo al gel e portavalvola incorporato in detta struttura. |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1732151A2 EP1732151A2 (fr) | 2006-12-13 |
EP1732151A3 EP1732151A3 (fr) | 2006-12-27 |
EP1732151B1 true EP1732151B1 (fr) | 2011-03-30 |
Family
ID=35503008
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP06114436A Not-in-force EP1732151B1 (fr) | 2005-05-26 | 2006-05-23 | Structure de bouchon pour batterie à électrolyte gélifié et support de valve integré dans cette structure |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1732151B1 (fr) |
AT (1) | ATE504091T1 (fr) |
DE (1) | DE602006020957D1 (fr) |
IT (1) | ITMI20050976A1 (fr) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102020000249A1 (de) | 2020-01-17 | 2021-07-22 | FRÖTEK Vermögensverwaltung GmbH | Belüftungsstopfen eines Behälters insbesondere einer Batterie |
US11289767B2 (en) | 2016-12-22 | 2022-03-29 | Cps Technology Holdings Llc | Valve assembly for a battery cover |
US11411280B2 (en) | 2017-06-09 | 2022-08-09 | Cps Technology Holdings Llc | Absorbent glass mat battery |
US11936032B2 (en) | 2017-06-09 | 2024-03-19 | Cps Technology Holdings Llc | Absorbent glass mat battery |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ATE528808T1 (de) | 2008-05-15 | 2011-10-15 | T A B A S R L | KAPPENSTRUKTUR UND DICHTUNGSSITZ DAVON IN EINEM KAMINASYSTEM ZUM SCHLIEßEN VON LÖCHERN IN ELEKTRISCHEN BATTERIEABDECKUNGEN |
CN107305947B (zh) * | 2016-04-25 | 2022-01-04 | 松下知识产权经营株式会社 | 电池和电池系统 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4203332A1 (de) * | 1992-02-06 | 1993-08-12 | Varta Batterie | Verschlussstopfen fuer elektrische akkumulatoren |
DE9312173U1 (de) * | 1993-08-14 | 1993-10-14 | Varta Batterie Ag, 30419 Hannover | Verschlußstopfen für einen Bleiakkumulator |
DE19527526A1 (de) * | 1995-07-27 | 1997-01-30 | Hagen Batterie Ag | Stopfenanordnung zum Verschließen einzelner Zellenöffnungen eines Akkumulators |
US20020094473A1 (en) * | 2001-01-16 | 2002-07-18 | Ching-Yuan Lin | Venting casing for a battery |
US20020177033A1 (en) * | 2001-04-03 | 2002-11-28 | Japan Storage Battery Co., Ltd. | Dry-charged lead acid battery and process for the production thereof |
-
2005
- 2005-05-26 IT IT000976A patent/ITMI20050976A1/it unknown
-
2006
- 2006-05-23 DE DE602006020957T patent/DE602006020957D1/de active Active
- 2006-05-23 AT AT06114436T patent/ATE504091T1/de not_active IP Right Cessation
- 2006-05-23 EP EP06114436A patent/EP1732151B1/fr not_active Not-in-force
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11289767B2 (en) | 2016-12-22 | 2022-03-29 | Cps Technology Holdings Llc | Valve assembly for a battery cover |
US11411280B2 (en) | 2017-06-09 | 2022-08-09 | Cps Technology Holdings Llc | Absorbent glass mat battery |
US11870096B2 (en) | 2017-06-09 | 2024-01-09 | Cps Technology Holdings Llc | Absorbent glass mat battery |
US11936032B2 (en) | 2017-06-09 | 2024-03-19 | Cps Technology Holdings Llc | Absorbent glass mat battery |
DE102020000249A1 (de) | 2020-01-17 | 2021-07-22 | FRÖTEK Vermögensverwaltung GmbH | Belüftungsstopfen eines Behälters insbesondere einer Batterie |
Also Published As
Publication number | Publication date |
---|---|
DE602006020957D1 (de) | 2011-05-12 |
EP1732151A2 (fr) | 2006-12-13 |
EP1732151A3 (fr) | 2006-12-27 |
ATE504091T1 (de) | 2011-04-15 |
ITMI20050976A1 (it) | 2006-11-27 |
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